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All Patents in class 451/247
Patents 16 - 20 of 20
First set of recordsPrevious set of recordsLast set of records
NumberDatePatenteeTitleType
2,105,872Jan. 18, 1938A.L. WarnerGrinding machine
2,245,654Jun. 17, 1941J.D. Rovick, J.C. DraderGear Lapping and Finishing Machinegear lapping machines
2,292,229Aug. 04, 1942E.C. KruegerSplash guard for grinding machines
2,604,740Jul. 29, 1952H.C. PerkinsMachine for yieldably presenting work to buffing or polishing wheels or belts
2,649,668Aug. 25, 1953C.A. Zinn, H.C. PerkinsRotary turret for multiple spindle polishing and buffing machines
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